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Debasis Ray

Academic Qualifications


  • Ph.D. (Science) (1990) (IACS/JU).
  • M.Sc. (Physics) (1982) (CU).
  • B.Sc. (Physics) (1980) (CU).

Research Statement


  • Atomic Physics in hot and dense plasmas & Plasma Spectroscopy.
  • Spectroscopic properties of laser-dressed atoms.
  • Spectroscopy of confined quantum systems –
    • Atomic systems under hydrostatic compression.
    • Impurity states in semiconductor nanostructures.
    •  

Latest Publications


  • 1 Joyee Basu and Debasis Ray, 2P1/2-2P3/2 fine-structure in a sodium atom embedded in a weakly-coupled Debye plasma, in the Book of Abstracts of PLASMA-2007, The 22nd National Symposium on Plasma Science and Technology, Ahmedabad, India, December (2007), 2007
  • 2 Joyee Basu and Debasis Ray, Vacuum polarization in hydrogenic ion in the presence of a dense strongly-coupled plasma, in the Book of Abstracts of PLASMA 2006, The 21st National Symposium on Plasma Science and Technology, Jaipur, India, December 19-22 (2006), 2006
  • 3 Madhab De and Debasis Ray, Influence of a weakly-coupled plasma on second-order Stark effect in the ground state of a hydrogen atom, in the Book of Abstracts of PLASMA-2006, The 21st National Symposium on Plasma Science and Technology, Jaipur, India, December 19-22 (2006), 2006
  • 4 Avijit Ghosh and Debasis Ray, Spin-orbit energy in a hydrogen atom under hydrostatic compression, 16, in the Book of Abstracts of TC- 2005, Topical Conference on Atomic, Molecular and Optical Physics, Kolkata, India, December 13-15 (2005), 2005
  • 5 Madhab De and Debasis Ray, "Extra-ordinary” Darwin shift in a hydrogen atom embedded in a weakly-coupled plasma, 28, in the Book of Abstracts of PLASMA 2005, The 20th National Symposium on Plasma Science and Technology, Cochin, India, December 5-7 (2005), 2005
  • 6 Debasis Ray, Frequency-dependent atomic response within a high-density plasma: in the Book of Abstracts of PLASMA-2003, 120-121, The 18th National Symposium on Plasma Science and Technology, Ranchi, India, December 08-11 (2003), 2003
  • 7 Debasis Ray, Atomic diamagnetism within a dense plasma, 63, 027401, Physical Review E, 2001
  • 8 A.K.Das, T.K.Ghosh, D.Ray, T.K.Mukherjee and P.K.Mukherjee, Radial and angular correlations in doubly-excited states : A time-dependent perturbation approach, 76, 99, International Journal of Quantum Chemistry, 2000
  • 9 Debasis Ray and Tarun Kanti Roy, Fine-structure quenching and multiplet distortion in a screened Coulomb atom, 10, 189, The European Physical Journal D, 2000
  • 10 Debasis Ray, Diamagnetic level-shift of an impurity ion in a magnetized plasma, 33, L21, Journal of Physics B: At.Mol.Opt.Phys., 2000
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    Research Areas


    Publications


  • 1 Joyee Basu and Debasis Ray, 2P1/2-2P3/2 fine-structure in a sodium atom embedded in a weakly-coupled Debye plasma, in the Book of Abstracts of PLASMA-2007, The 22nd National Symposium on Plasma Science and Technology, Ahmedabad, India, December (2007), 2007
  • 2 Debasis Ray, Atomic diamagnetism within a dense plasma, 63, 027401, Physical Review E, 2001
  • 3 A.K.Das, T.K.Ghosh, D.Ray, T.K.Mukherjee and P.K.Mukherjee, Radial and angular correlations in doubly-excited states : A time-dependent perturbation approach, 76, 99, International Journal of Quantum Chemistry, 2000
  • 4 Debasis Ray and Tarun Kanti Roy, Fine-structure quenching and multiplet distortion in a screened Coulomb atom, 10, 189, The European Physical Journal D, 2000
  • 5 Debasis Ray, Diamagnetic level-shift of an impurity ion in a magnetized plasma, 33, L21, Journal of Physics B: At.Mol.Opt.Phys., 2000
  • 6 Debasis Ray, Influence of a dense plasma on the fine-structure levels of a hydrogenic ion, 62, 4126, Physical Review E, 2000
  • 7 A.K.Das, T.K.Ghosh, D.Ray, T.K.Mukherjee and P.K.Mukherjee, Quadrupolar transitions in Chlorine Isoelectronic Ions, 58, 315, Physica Scripta, 1998
  • 8 A.K.Das, T.K.Ghosh, D.Ray, T.K.Mukherjee and P.K.Mukherjee, Inter-configuration forbidden transition in Argon isoelectronic ions, 508, 959, The Astrophysical Journal, 1998
  • 9 D.Ray and P.K.Mukherjee, Magnetic multipole transitions of a stripped carbon ion in a variety of Debye Plasmas, 361, 3479, Journal of Physics B: At.Mol.Opt.Phys., 1998
  • 10 D.Ray and P.K.Mukherjee, Ionic transitions and oscillator strengths in a Debye Plasma - a case study, 2, 89, The European Physical Journal D, 1998
  • 11 D.Ray, H.Anton, P.C.Schmidt and Al.Weiss, A theoretical modeling of static and dynamic polarizability of O2- in large and complex oxides, 51, 1, Zeitschrift fuer Naturforschung, 1996
  • 12 D.Ray, P.C.Schmidt and Alarich Weiss, Effect of crystal potential on dynamic polarizability of negative ions, 93, 177, Theoretica Chimica Acta, 1996
  • 13 T.K.Ghosh, D.Ray and P.K.Mukherjee, Oscillator strengths for highly stripped ions of carbon isoelectronic sequence, 73, 554, Canadian Journal of Physics, 1995
  • 14 D. Ray and P.K.Mukherjee, Radiative transitions in highly-stripped carbon-like ions, 51, 81, Physica Scripta, 1995
  • 15 D.Ray, M.Sugawara,Y.Fujimura, A.K.Das and P.K.Mukherjee, Doubly excited 1F0 states of two-electron ions - a time-dependent variation- perturbation calculation, 169, 452, Physics Letters A, 1992
  • 16 A.K.Das, D.Ray and P.K.Mukherjee, Static dipole polarizabilities of open-shell negative ions, 82, 223, Theoretica Chimica Acta, 1992
  • 17 D.Ray and P.K.Mukherjee, Doubly excited 1Se , 1De and 1Ge states of He, Li+, Be2+ and B3+, 24, 1241, Journal of physics B : At.Mol.Opt.Phys., 1991
  • 18 D.Ray, B.Kundu, P.K.Mukherjee, K.Ohtsuki and K.Ohno, Time-dependent perturbation calculation for the doubly excited states in two-electron systems, 136, 423, Physics Letters A, 1989
  • 19 D.Ray and P.K.Mukherjee, Frequency-dependent polarisabilities and Rydberg transition of the magnesium isoelectronic sequence, 22, 2103, Journal of Physics B: At.Mol.Opt.Phys, 1989
  • 20 D.Ray, P.K.Mukherjee and H.P.Roy, Magnetic quadrupole transition rates and Rydberg states of the magnesium isoelectronic sequence, 346, 1045, The Astrophysical Journal, 1989
  • 21 D.Ray, B.Kundu and P.K.Mukherjee, Dynamic Multipole polarizabilities and Rydberg states of the beryllium isoelectronic sequence, 37, 1095, Physical Review A, 1988
  • 22 D.Ray, B.Kundu and P.K.Mukherjee, Rydberg states and spin-forbidden transitions of the beryllium isoelectronic sequence Journal of Physics B, 21, 3191, At.Mol.Opt.Phys, 1988
  • 23 B.Kundu, D.Ray and P.K. Mukherjee, Dynamic Polarizabilities and Rydberg states of the sodium isoelectronic sequence, 34, 62, Physical Review A, 1986
  • 1 Joyee Basu and Debasis Ray, Vacuum polarization in hydrogenic ion in the presence of a dense strongly-coupled plasma, in the Book of Abstracts of PLASMA 2006, The 21st National Symposium on Plasma Science and Technology, Jaipur, India, December 19-22 (2006), 2006
  • 2 Madhab De and Debasis Ray, Influence of a weakly-coupled plasma on second-order Stark effect in the ground state of a hydrogen atom, in the Book of Abstracts of PLASMA-2006, The 21st National Symposium on Plasma Science and Technology, Jaipur, India, December 19-22 (2006), 2006
  • 3 Avijit Ghosh and Debasis Ray, Spin-orbit energy in a hydrogen atom under hydrostatic compression, 16, in the Book of Abstracts of TC- 2005, Topical Conference on Atomic, Molecular and Optical Physics, Kolkata, India, December 13-15 (2005), 2005
  • 4 Madhab De and Debasis Ray, "Extra-ordinary” Darwin shift in a hydrogen atom embedded in a weakly-coupled plasma, 28, in the Book of Abstracts of PLASMA 2005, The 20th National Symposium on Plasma Science and Technology, Cochin, India, December 5-7 (2005), 2005
  • 5 Debasis Ray, Frequency-dependent atomic response within a high-density plasma: in the Book of Abstracts of PLASMA-2003, 120-121, The 18th National Symposium on Plasma Science and Technology, Ranchi, India, December 08-11 (2003), 2003
  • 6 D.Ray and P.K.Mukherjee, A new theoretical approach for the study of double excitations in atoms: in Abstracts of contributed papers of the XVII th, International Conference on the Physics of Electronic and Atomic collisions (XVII ICPEAC), Brisbane 10-16 July (1991), 1991
  • 7 B.Kundu, D.Ray and P.K.Mukherjee, Time-dependent perturbation calculation for the doubly excited states in two-electron systems, 840, in Abstracts of contributed papers of the XVI th. International Conference on the Physics of Electronic and Atomic Collisions (XVI ICPEAC), New York, 26 July-1 August (1989), 1989
  • 8 D.Ray and P.K.Mukherjee, Compound atom states of two electron atoms: a time-dependent perturbation approach, B15, 64, in Abstracts of the First Asia-Pacific Conference on Atomic and Molecular Physics, Taipei, Taiwan, Republic of China,November 25-29 (1988), 1988
  • 9 D.Ray, B.Kundu and P.K.Mukherjee, Rydberg states of beryllium and sodium isoelectronic sequence, 40, in the Book of Abstracts of the International Conference on the impact of Supercomputers on Chemistry, University of London, London, England, 13-16 April (1987), 1987
  • 10 D.Ray, B.Kundu and P.K.Mukherjee, Dynamic polarizability and Rydberg states of sodium, 36, 232, in Abstracts of the Vth International Congress on Quantum Chemistry (ICQC), Montreal, Canada, August 18-24 (1985), 1985
  • Patents


    # Patents Year